EP1944894A3 - Optical transmitter, optical transmission method, and wavelength-selective variable delayer - Google Patents

Optical transmitter, optical transmission method, and wavelength-selective variable delayer Download PDF

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Publication number
EP1944894A3
EP1944894A3 EP07023032.1A EP07023032A EP1944894A3 EP 1944894 A3 EP1944894 A3 EP 1944894A3 EP 07023032 A EP07023032 A EP 07023032A EP 1944894 A3 EP1944894 A3 EP 1944894A3
Authority
EP
European Patent Office
Prior art keywords
optical
signal
wavelength
time difference
optical transmitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP07023032.1A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1944894A2 (en
Inventor
Toshiki Tanaka
Hisao Nakashima
Takeshi Hoshida
Toru Katagiri
Hiroki Ooi
Akira Miura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of EP1944894A2 publication Critical patent/EP1944894A2/en
Publication of EP1944894A3 publication Critical patent/EP1944894A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0286—WDM hierarchical architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
    • H04B10/2557—Cross-phase modulation [XPM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0215—Architecture aspects
    • H04J14/0217—Multi-degree architectures, e.g. having a connection degree greater than two
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0215—Architecture aspects
    • H04J14/0219—Modular or upgradable architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0245—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU
    • H04J14/0246—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for downstream transmission, e.g. optical line terminal [OLT] to ONU using one wavelength per ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0227—Operation, administration, maintenance or provisioning [OAMP] of WDM networks, e.g. media access, routing or wavelength allocation
    • H04J14/0241—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths
    • H04J14/0242—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON
    • H04J14/0249—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU
    • H04J14/025—Wavelength allocation for communications one-to-one, e.g. unicasting wavelengths in WDM-PON for upstream transmission, e.g. ONU-to-OLT or ONU-to-ONU using one wavelength per ONU, e.g. for transmissions from-ONU-to-OLT or from-ONU-to-ONU
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0278—WDM optical network architectures
    • H04J14/0283—WDM ring architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0215—Architecture aspects
    • H04J14/022—For interconnection of WDM optical networks
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
EP07023032.1A 2006-12-28 2007-11-28 Optical transmitter, optical transmission method, and wavelength-selective variable delayer Withdrawn EP1944894A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006356187A JP4571933B2 (ja) 2006-12-28 2006-12-28 光伝送装置および光伝送方法

Publications (2)

Publication Number Publication Date
EP1944894A2 EP1944894A2 (en) 2008-07-16
EP1944894A3 true EP1944894A3 (en) 2015-10-28

Family

ID=39467250

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07023032.1A Withdrawn EP1944894A3 (en) 2006-12-28 2007-11-28 Optical transmitter, optical transmission method, and wavelength-selective variable delayer

Country Status (3)

Country Link
US (1) US8625996B2 (ja)
EP (1) EP1944894A3 (ja)
JP (1) JP4571933B2 (ja)

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JP4906830B2 (ja) * 2008-10-16 2012-03-28 日本電信電話株式会社 パストレース方法及びトランスペアレントネットワークシステム
JP5189558B2 (ja) * 2009-05-27 2013-04-24 富士通テレコムネットワークス株式会社 光波長多重化伝送システム
JP2011035735A (ja) * 2009-08-03 2011-02-17 Fujitsu Ltd 伝送装置，伝送システムおよび通信方法
US8380068B2 (en) * 2009-10-27 2013-02-19 Xtera Communications Inc. Distinct dispersion compensation for coherent channels
US8055140B2 (en) * 2009-11-10 2011-11-08 Fujitsu Limited Reducing cross-phase modulation using group delay
JP5636712B2 (ja) * 2010-03-23 2014-12-10 富士通株式会社 信号光処理装置、光伝送装置及び信号光処理方法
JP5357819B2 (ja) * 2010-04-12 2013-12-04 株式会社日立製作所 データ伝送装置
US20120008943A1 (en) * 2010-07-08 2012-01-12 Nec Laboratories America, Inc. Optical switching network
JP5270740B2 (ja) * 2011-11-04 2013-08-21 日本電信電話株式会社 光伝送装置
JP5270742B2 (ja) * 2011-11-04 2013-08-21 日本電信電話株式会社 光伝送装置
JP5270741B2 (ja) * 2011-11-04 2013-08-21 日本電信電話株式会社 光伝送装置
US9130692B2 (en) * 2012-04-23 2015-09-08 Coriant Operations, Inc. Reconfigurable optical add/drop multiplexer network element for C-band and L-band optical signals
JP5994508B2 (ja) * 2012-09-18 2016-09-21 富士通株式会社 送信装置、通信システム、及び送信レベルの制御方法
US8849114B2 (en) * 2012-09-30 2014-09-30 Infinera Corporation Nonlinear compensation in WDM systems
US9332323B2 (en) * 2012-10-26 2016-05-03 Guohua Liu Method and apparatus for implementing a multi-dimensional optical circuit switching fabric
US9166722B2 (en) * 2012-12-12 2015-10-20 Adva Optical Networking Se Method and apparatus for increasing a transmission performance of a hybrid wavelength division multiplexing system
WO2014156203A1 (ja) * 2013-03-29 2014-10-02 日本電気株式会社 光通信システム
US9225457B2 (en) 2014-01-10 2015-12-29 Google Inc. Overlapping spectrum in optical communication
US9191141B2 (en) 2014-01-10 2015-11-17 Google Inc. Overlapping spectrum in optical communication
US20150256908A1 (en) * 2014-03-05 2015-09-10 Oplink Communications, Inc. N-degree cdc wsx roadm
US9559776B2 (en) * 2015-01-21 2017-01-31 Google Inc. Locally powered optical communication network
JP6458560B2 (ja) * 2015-03-06 2019-01-30 富士通株式会社 波長割当方法及び波長割当装置
US9654209B2 (en) * 2015-04-08 2017-05-16 Nec Corporation Low cost secure ROADM branching unit with redundancy protection
EP3487094A4 (en) * 2016-08-08 2019-08-07 Mitsubishi Electric Corporation OPTICAL RELAY DEVICE, NETWORK MANAGEMENT DEVICE, OPTICAL TRANSMISSION SYSTEM AND ADJUSTMENT MODIFICATION METHOD
CN108603803B (zh) * 2017-01-06 2019-11-22 华为技术有限公司 一种测量光纤色散系数的方法及网络设备
JP7147626B2 (ja) * 2019-02-25 2022-10-05 富士通株式会社 伝送装置及び伝送システム
US20230084066A1 (en) * 2021-09-14 2023-03-16 Huawei Technologies Co., Ltd. System and method for dispersion compensation in fibered optical communication paths
US11652547B2 (en) 2021-09-24 2023-05-16 Huawei Technologies Co., Ltd. Method and systems to identify types of fibers in an optical network

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1087552A2 (en) * 1999-09-24 2001-03-28 Fujitsu Limited Wavelength dispersion compensating method and optical transmission system
JP2003060574A (ja) * 2001-08-20 2003-02-28 Hitachi Ltd 光伝送システム、波長多重器、および、波長多重伝送システムの分散補償方法
EP1624595A1 (en) * 2004-08-06 2006-02-08 Tyco Telecommunications (US) Inc. Transmission of optical signals of different modulation formats in discrete wavelength bands

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JP3291370B2 (ja) * 1993-08-30 2002-06-10 株式会社日立製作所 光波長多重伝送方式
JP3615311B2 (ja) 1995-07-19 2005-02-02 日本電信電話株式会社 光波長多重送信器
US6124960A (en) * 1997-09-08 2000-09-26 Northern Telecom Limited Transmission system with cross-phase modulation compensation
US6381048B1 (en) * 1998-09-15 2002-04-30 Lucent Technologies Inc. Wavelength division multiplexed system having reduced cross-phase modulation
JP4294153B2 (ja) * 1999-04-12 2009-07-08 富士通株式会社 波長多重光伝送システム
JP2000357992A (ja) 1999-06-16 2000-12-26 Nec Corp 光伝送路及び光伝送システム
JP3727520B2 (ja) * 2000-08-08 2005-12-14 日本電信電話株式会社 波長多重伝送システム
JP4181742B2 (ja) * 2000-12-13 2008-11-19 日本電気株式会社 波長分割多重光伝送システムにおける相互位相変調抑圧装置および光通信システム
US20030035172A1 (en) * 2001-08-17 2003-02-20 Gang (Paul) Chen Tunable, reconfigurable optical add-drop multiplexer and a switching device
JP4030765B2 (ja) 2002-01-29 2008-01-09 三菱電機株式会社 波長多重光伝送システム
JP3685489B2 (ja) 2002-01-31 2005-08-17 沖電気工業株式会社 光通信ネットワークシステム

Patent Citations (3)

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Publication number Priority date Publication date Assignee Title
EP1087552A2 (en) * 1999-09-24 2001-03-28 Fujitsu Limited Wavelength dispersion compensating method and optical transmission system
JP2003060574A (ja) * 2001-08-20 2003-02-28 Hitachi Ltd 光伝送システム、波長多重器、および、波長多重伝送システムの分散補償方法
EP1624595A1 (en) * 2004-08-06 2006-02-08 Tyco Telecommunications (US) Inc. Transmission of optical signals of different modulation formats in discrete wavelength bands

Non-Patent Citations (1)

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Title
CHARLET G ET AL: "Nonlinear Interactions Between 10Gb/s NRZ Channels and 40Gb/s Channels with RZ-DQPSK or PSBT Format, over Low-Dispersion Fiber", PROCEEDINGS / ECOC 2006, 32ND EUROPEAN CONFERENCE ON OPTICAL COMMUNICATION : 24 - 28 SEPTEMBER 2006, CANNES, FRANCE, SEE, PARIS, FRANCE, 24 September 2006 (2006-09-24), pages 1 - 2, XP031436977, ISBN: 978-2-912328-39-7 *

Also Published As

Publication number Publication date
JP4571933B2 (ja) 2010-10-27
US20120170928A1 (en) 2012-07-05
EP1944894A2 (en) 2008-07-16
US8625996B2 (en) 2014-01-07
JP2008167297A (ja) 2008-07-17

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